A laminator is a machine that covers documents or images with a thin layer of plastic. This process, called lamination, helps protect the items from damage, such as tears, spills, or fading. Laminators are commonly used in schools, offices, and homes to preserve important papers, like certificates, menus, or artwork. Using a laminator is simple. You place the document inside a special pouch, then feed it into the machine. The laminator heats up and seals the plastic around the paper, creating a durable finish. Many people find laminators useful for creating long-lasting items, such as flashcards or signs.